Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

360° views of the city plus five floors of optical illusions and hands-on science.

Famously misunderstood wonder of the ancient world

A church of bones, decorated with 40,000 human skeletons.

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."

A taste of the macabre Tokyo's ritzy shopping district.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

A trash dump made beautiful by nature's power.

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

Try not to get slimed in Tribeca.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

An eerie, derelict amusement park in Berlin.

An exquisite tunnel of cascading flowers.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

World's first "penitentiary," meant to be humane, drove men insane.

An artsy hidden staircase leads to breathtaking views of San Francisco.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

An often-shuddersome journey into a low-tech, robotic themepark.

Old vessels have been transformed into artistic canvases in this unusual cemetery.

A quaint medieval millhouse hovers surprisingly above the waters of the Seine.